Mazda 3 2012 – The Mazda3 has long been one of the most Mazda design product fun-to-drive compacts on the market, combining flamboyant styling with crisp handling and a little more eagerness and sports-car attitude than most other small cars. The Mazda 3 is Mazda’s best-selling vehicle worldwide and accounts for nearly half of all Mazda sales in the United States, making the vehicle a prime candidate for introducing SKYACTIV to consumers looking for dynamic performance coupled with high fuel efficiency.
Redesigned for the 2010 model year, the refreshed 2012 Mazda 3 is Mazda’s first application of SKYACTIV technologies in North America, receiving an all-new SKYACTIV-G gasoline engine as well as the all-new SKYACTIV-Drive six-speed automatic transmission and all-new SKYACTIV-MT six-speed manual transmission.
SKYACTIV is not just an engine; it is the next generation of advanced vehicle performance and efficiency,” said Jim O’Sullivan, President and CEO, Mazda North American Operations (MNAO).
The 2012 Mazda 3 achieves a high compression ratio of 12.0:1 and delivers 155 horsepower at 6,000 rpm and 148 lb-ft of torque at 4,100 rpm. (The PZEV version of this engine sold in California and other states produces 154 hp at 6,000 rpm and 148 lb-ft of torque at 4,100 rpm).
The Mazda 3′s current MZR 2.0-liter dual-overhead-cam 16-valve four-cylinder engine is the all-new high-efficiency direct-injection SKYACTIV-G 2.0-liter gasoline engine. Mated to a standard SKYACTIV-MT six-speed manual transmission or optional SKYACTIV-Drive six-speed automatic transmission, SKYACTIV will be available in either the sedan or hatchback models. The MZR 2.0-liter engine will continue to be available with the current five-speed manual as standard equipment. MZR 2.0-liter-equipped models also will be available with the current five-speed automatic as an option.
Compared to the current Mazda 3 MZR 2.0-liter engine, the maximum power of the SKYACTIV-equipped 2012 Mazda 3 is increased by approximately five percent (from 148 horsepower at 6,500 rpm) and torque is increased by approximately 10 percent (from 135 lb-ft at 4,500 rpm). With improved torque, coupled with a drive control system that utilizes coordinated controls of the engine and transmission, Mazda 3s with SKYACTIV technology excel in dynamic response, further maintaining the Zoom-Zoom idea of oneness between the car and driver.
Also, previously only available with the MZR 2.5-liter engine, the Mazda 3 five-door hatchback model will now be offered in the U.S. with the SKYACTIV-G 2.0-liter gasoline engine. This Mazda 3 hatchback is estimated to deliver 27 city/38 highway (SKYACTIV-MT) and 28 city/38 highway (SKYACTIV-Drive AT). The slightly lower highway estimates can be attributed to different aerodynamics and the higher weight ratio between the sedan and hatchback. However, the hatchback’s driving range remains impressive with more than 500 miles of driving on the same sized tank as the sedan. The MZR 2.0-liter engine will not be available in the hatchback model.
Fuel economy also gets a boost from the combination of a SKYACTIV engine and transmissions. When equipped with the SKYACTIV-G gasoline engine and optional SKYACTIV-Drive six-speed automatic transmission, the 2012 Mazda 3 sedan will achieve an EPA rating of 40 mpg on the highway, an approximately 21-percent improvement over the current MZR 2.0-liter engine equipped with the optional five-speed automatic transmission.
With a fuel tank capacity of 14.5 gallons, the 2012 Mazda 3 sedan with SKYACTIV has the potential of a 540-mile range, with still a gallon of fuel remaining. City mpg for the sedan version also improves by 17 percent to 28 mpg. When equipped with the SKYACTIV-MT six-speed manual transmission, the sedan is rated with an estimated fuel economy of 27 city/39 highway.
For SKYACTIV-MT, the goal was to achieve a shift feel that is sporty, brisk and responds to the driver. To accomplish this, not only was the shift-lever stroke shortened by about 10 percent compared to the current six-speed manual (available only in models equipped with the MZR 2.5-liter engine or MZR 2.3-liter Direct-Injection Spark Ignition turbo engine) but other technologies were applied as well: a down type system, lock ball type synchronizer, shift load canceller, slide ball bearing and locating 2nd and 3rd gears on a common shaft.
Fuel is delivered to the intake ports by an electronically controlled sequential injection system. Ignition coils are modular units positioned directly above the spark plugs. Shim-less bucket tappets require no maintenance. Lightweight pistons are coated with a special anti-friction compound and fitted with low-tension rings for improved gas mileage.
Providing 167 hp at 6,000 rpm and 168 lb-ft of torque at 4,000 rpm, the MZR 2.5-liter engine is available with a six-speed manual transmission or a five-speed electronically-controlled automatic with manual shift control. (The PZEV version of this engine sold in California and other states produces 165 hp at 6,000 rpm and 167 lb-ft of torque at 4,000 rpm). The MZR 2.5-liter engine achieves EPA figures of 20 city and 28 highway with a manual transmission and 22 city and 29 highway with the automatic.
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